kernel/Makefile

   1 include arch/x86/Makefile
   2 include drivers/Makefile
   3 include kernel/Makefile
   4
   5 ASFLAGS_BASE = -f elf -g dwarf2
   6 CFLAGS_BASE = -fgnu89-inline -ffreestanding -nostdlib -Iinclude \
   7               -Iinclude/arch/x86 -g -DGIT_COMMIT=\"$(GIT_REV)\" \
   8               -O2 -flto
   9 LDFLAGS_BASE = -ffreestanding -nostdlib -lgcc -g -flto -T arch/x86/linker.ld
  10
  11 kernel.elf kernel.dbg: $(KERNEL_OBJ)
  12         $(REAL_CC) $(LDFLAGS_BASE) $(LDFLAGS) $^ -o $@
  13         $(CROSS_COMPILE)objcopy --only-keep-debug kernel.elf kernel.dbg
  14         $(CROSS_COMPILE)objcopy --add-gnu-debuglink=kernel.dbg kernel.elf
  15         $(CROSS_COMPILE)strip --strip-unneeded kernel.elf
  16
  17 clean:
  18         -rm $(KERNEL_OBJ) kernel.elf kernel.dbg
  19
  20 # Implicit rules
  21 %.o: %.c
  22         $(REAL_CC) $(CFLAGS_BASE) $(CFLAGS) -c $< -o $@
  23
  24 %.o: %.s
  25         $(AS) $(ASFLAGS_BASE) $(ASFLAGS) $< -o $@
  26
  27 .PHONY: clean